Keening

The keening whistle of the tea kettle signaled that the water had boiled.

The keening whistle of the teapot signaled that the water was boiling.

As the fog rolled in, a keening foghorn warned ships of the treacherous rocks ahead.

The character in the novel was portrayed as a keening figure, forever yearning for redemption and forgiveness.

As the funeral procession passed by, the sound of keening echoed through the streets.

The haunting melody of the keening bagpipes played at the memorial service brought a sense of solemnity to the occasion.